CN218671577U - Instrument condensate water discharge system - Google Patents
Instrument condensate water discharge system Download PDFInfo
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- CN218671577U CN218671577U CN202223376474.5U CN202223376474U CN218671577U CN 218671577 U CN218671577 U CN 218671577U CN 202223376474 U CN202223376474 U CN 202223376474U CN 218671577 U CN218671577 U CN 218671577U
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Abstract
The utility model relates to an instrument comdenstion water discharge system, include: a vacuum condenser; the top of the liquid level tank is communicated with the bottom of the vacuum condenser and is used for collecting condensed water of the vacuum condenser; the instrument negative phase probe is connected with the upper part of the liquid level tank through a first pipeline and is used for monitoring the internal pressure of the first pipeline; the instrument negative phase cut-off valve is arranged on the first pipeline and used for cutting off the first pipeline; the instrument positive-phase probe is connected with the lower part of the liquid level tank through a second pipeline and is used for monitoring the internal pressure of the second pipeline; the instrument positive phase cut-off valve is arranged on the second pipeline and used for cutting off the second pipeline; and the condensed water collecting and discharging system is connected with the negative phase probe of the instrument and is used for collecting and discharging condensed water accumulated in the negative phase probe of the instrument. The utility model discloses only need transiently to keep apart the instrument and carry out the flowing back, easy operation, flowing back are swift and high-efficient.
Description
Technical Field
The utility model relates to an instrument liquid level detection technical field specifically is about an instrument comdenstion water discharge system.
Background
In the urea production device, a carbon dioxide compressor is needed to pressurize carbon dioxide and then participate in the urea synthesis reaction. The carbon dioxide compressor needs the steam turbine to drive the acting, improves the acting efficiency for reducing the steam energy consumption, and the steam turbine design has vacuum condensing system, and the exhaust steam after the turbine acting utilizes the circulating water to carry out the condensation cooling, and the condensate is collected inside the collecting vat, needs liquid level monitoring instrument continuous monitoring liquid level. The vacuum condensing system is equipped with the condensate recovery pump, cooperates jointly with the liquid level monitoring instrument, controls condenser liquid level height, and when the liquid level risees, through opening big regulating valve, increase and send the condensate liquid measure outward, when the liquid level reduces, closes little governing valve, reduces and send the mode of condensate liquid measure outward, guarantees the liquid level stability constantly. The liquid level is too high to lead to the condensate to submerge the shell and tube, and heat transfer area reduces, influences the heat transfer effect, and then influences the turbine vacuum, can cause equipment major accident of jumping even seriously. Too low a level can cause pump vaporization or operational failure, as well as present a safety hazard. For avoiding above-mentioned problem to take place, liquid level groove department is equipped with the liquid level and too high or crosses low interlocking, and the liquid level is too high can trigger the high interlocking action double pump of liquid level and start, increases and send out the condensate quantity outward, and the liquid level crosses low can trigger the low interlocking action of liquid level excessively, and the double pump is stopped the fortune, stops that the condensate is sent outward.
The stability of liquid level needs the real-time supervision of instrument, if the instrument instructs the distortion, too high or low excessively will lead to condensate pump interlocking malfunction, and the unable accurate control of outward sending condensate liquid volume causes the uncontrollable of actual liquid level, produces above-mentioned potential safety hazard.
Because this level gauge instrument belongs to the differential pressure type level gauge, about 55 ℃ of instrument negative phase department temperature, there is the condensation phenomenon, easily leads to negative phase probe department hydrops among the operation process, and then leads to the instrument to instruct the distortion. Therefore, the instrument needs to be isolated regularly and continuously, the plug is removed for liquid discharge, the workload of operators is increased by continuous liquid discharge, certain safety risks exist each time, the isolation valve is opened and closed continuously, valve leakage is caused easily, once the valve leakage occurs, turbine vacuum cannot be controlled directly, and then major accidents are caused.
Disclosure of Invention
To the problem, the utility model aims at providing an instrument comdenstion water discharge system need not to demolish the end cap flowing back, only needs the short-term instrument of keeping apart to carry out the flowing back, and easy operation, flowing back are swift and high-efficient.
In order to achieve the purpose, the utility model adopts the following technical proposal:
instrument comdenstion water discharge system, include: a vacuum condenser; the top of the liquid level tank is communicated with the bottom of the vacuum condenser and is used for collecting condensed water of the vacuum condenser; the instrument negative phase probe is connected with the upper part of the liquid level tank through a first pipeline and is used for monitoring the internal pressure of the first pipeline; the instrument negative phase cut-off valve is arranged on the first pipeline and used for cutting off the first pipeline; the instrument positive-phase probe is connected with the lower part of the liquid level tank through a second pipeline and is used for monitoring the internal pressure of the second pipeline; the instrument positive phase cut-off valve is arranged on the second pipeline and used for cutting off the second pipeline; and the condensed water collecting and discharging system is connected with the instrument negative phase probe and is used for collecting and discharging condensed water accumulated in the instrument negative phase probe.
The instrument condensate water drainage system preferably further comprises an instrument transmitter, the instrument negative phase probe and the instrument positive phase probe are respectively connected with the instrument transmitter through a third pipeline, and the instrument transmitter is used for acting condensate water input into the instrument transmitter on the instrument transmitter to generate pressure difference, converting the pressure difference into an electric signal and transmitting the electric signal to the control system.
The instrument condensed water discharge system preferably comprises a condensed water collecting tank, an air inlet pipeline, a liquid inlet pipeline, an air inlet valve and a liquid inlet valve; an inlet of the condensed water collecting tank is communicated with air through the air inlet pipeline, and the air inlet valve is arranged on the air inlet pipeline; one end of the liquid inlet pipeline is connected with the instrument negative phase probe, the other end of the liquid inlet pipeline is connected into the gas inlet pipeline, and the liquid inlet valve is arranged on the liquid inlet pipeline.
The instrument condensed water discharge system preferably further comprises a drain pipeline and a drain valve; the bottom outlet of the condensed water collecting tank is connected through a liquid discharge pipeline and guides out condensed water; and the liquid discharge valve is arranged on the liquid discharge pipeline and is used for controlling the circulation and the cut-off of the liquid discharge pipeline.
In the instrument condensed water discharge system, preferably, the air inlet pipeline and the liquid inlet pipeline respectively adopt phi 12 instrument tubes; the air inlet valve and the liquid inlet valve are respectively phi 12 needle valves.
The instrument condensed water discharge system is characterized in that preferably, a phi 12 instrument pipe is adopted as the liquid discharge pipeline; the drain valve adopts a phi 12 needle valve.
The utility model discloses owing to take above technical scheme, it has following advantage:
(1) The utility model adopts the combination of the instrument pipeline and the collecting tank, realizes the collection and isolated discharge of the condensed water of the instrument, and ensures the convenience and safety in the operation process;
(2) The utility model solves the problem of instrument indication distortion caused by condensed water accumulated in the instrument negative phase, ensures the accuracy of instrument indication, and avoids major hidden danger of unsafe operation of equipment caused by error indication of the instrument;
(3) The utility model discloses avoided operating personnel to discharge the accident hidden danger that the instrument comdenstion water produced in succession many times, reduced operating personnel work load, reduced the influence risk to main device.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Like reference numerals refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
The reference symbols in the drawings denote the following:
1-vacuum condenser; 2-a liquid level tank; 3-negative phase probe of instrument; 4-a first pipeline; 5-instrument negative phase cut-off valve; 6-instrument normal phase probe; 7-a second pipeline; 8-a third pipeline; 9-instrument positive phase cut-off valve; 10-a meter transmitter; 11-a condensate collection tank; 12-an air intake line; 13-a liquid inlet pipeline; 14-an intake valve; 15-liquid inlet valve; 16-a drainage line; 17-drain valve.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The utility model provides an instrument comdenstion water discharge system collects the comdenstion water that stores up in can the instrument negative phase probe through comdenstion water collection and discharge system to discharge in good time, thereby avoided the condition emergence of instrument instruction distortion.
The utility model provides an instrument comdenstion water discharge system, include: a vacuum condenser 1; the top of the liquid level tank 2 is communicated with the bottom of the vacuum condenser 1 and is used for collecting condensed water of the vacuum condenser 1; the instrument negative phase probe 3 is connected with the upper part of the liquid level tank 2 through a first pipeline 4, and the instrument negative phase probe 3 is used for monitoring the internal pressure of the first pipeline 4; the instrument negative phase cut-off valve 5 is arranged on the first pipeline 4 and is used for cutting off the first pipeline 4; the instrument positive-phase probe 6 is connected with the lower part of the liquid level tank 2 through a second pipeline 7, the instrument positive-phase probe 6 is used for monitoring the internal pressure of the second pipeline 7, and the instrument positive-phase probe 6 is connected with the instrument negative-phase probe 3 through a third pipeline 8; the instrument positive phase cut-off valve 9 is arranged on the second pipeline 7 and is used for cutting off the second pipeline 7; and the condensed water collecting and discharging system is connected with the instrument negative phase probe 3 and is used for collecting and discharging condensed water accumulated in the instrument negative phase probe 3.
In the above embodiment, preferably, the utility model discloses still include instrument changer 10, instrument negative phase probe 3 with instrument positive phase probe 6 is connected through third pipeline 8 with instrument changer 10 respectively, and is specific, instrument changer 10 is used for producing pressure differential on being used for the instrument changer with its inside comdenstion water of input, utilizes pressure differential to change into the signal of telecommunication to carry this signal of telecommunication for control system.
In the above embodiment, preferably, the condensed water collecting and discharging system comprises a condensed water collecting tank 11, an air inlet pipe 12, a liquid inlet pipe 13, an air inlet valve 14 and a liquid inlet valve 15; the inlet of the condensed water collecting tank 11 is communicated with air through an air inlet pipeline 12, and an air inlet valve 14 is arranged on the air inlet pipeline 12; one end of the liquid inlet pipeline 13 is connected with the instrument negative phase probe 3, the other end of the liquid inlet pipeline is connected with the gas inlet pipeline 12, and the liquid inlet valve 15 is arranged on the liquid inlet pipeline 13. This allows condensed water accumulated in the instrumentation negative phase probe 3 to be introduced into the condensed water collection tank 11.
In the above embodiment, preferably, the condensed water collecting and discharging system further includes a drain line 16 and a drain valve 17; the bottom outlet of the condensed water collecting tank 11 is connected through a drainage pipeline 16 and guides out the condensed water; the drain valve 17 is provided in the drain line 16 and controls the flow and shutoff of the drain line 16. Thus, when the condensate collection tank 11 is full, it can be drained through the drain line 16.
In the above embodiment, preferably, the air inlet pipeline 12 and the liquid inlet pipeline 13 are respectively made of phi 12 instrument tubes; the air inlet valve 14 and the liquid inlet valve 15 are respectively phi 12 needle valves.
In the above embodiment, preferably, the drainage pipe 16 is a phi 12 instrument pipe; the drain valve 17 adopts a phi 12 needle valve.
The utility model discloses a working process does:
(1) In daily production, when the liquid level indication of the vacuum condenser 1 is found to have a slow descending trend, the amount of the delivered condensate is confirmed to be unchanged, and the condition that the condensate collecting tank 11 is full of the condensate due to accumulation of the condensate at the instrument negative phase probe 3 of the instrument transmitter 10 can be judged, so that the condensate needs to be discharged immediately, and the liquid level indication is ensured to be accurate.
(2) In the discharge process, through closing the feed liquor valve 15 on the feed liquor pipeline 13 of condensate water collection tank 11, keep apart condensate water collection tank 11 and instrument negative phase probe 3, open admission valve 14 on the admission line 12, make condensate water collection tank 11 and atmosphere UNICOM, open the flowing back valve 17 on the flowing back pipeline 16 of condensate water collection tank again and discharge the comdenstion water, after the comdenstion water evacuation, close flowing back valve 17 in proper order, admission valve 14, open feed liquor valve 15, throw instrument comdenstion water discharge system again.
The instrument condensed water is regularly discharged through the instrument condensed water discharge system, so that the accuracy of instrument indication can be ensured, the interlocking error action caused by the error indication of the instrument is avoided, and the safety risk of system operation is avoided.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. An instrument condensate drain system, comprising:
a vacuum condenser;
the top of the liquid level tank is communicated with the bottom of the vacuum condenser and is used for collecting condensed water of the vacuum condenser;
the instrument negative phase probe is connected with the upper part of the liquid level tank through a first pipeline and is used for monitoring the internal pressure of the first pipeline;
the instrument negative phase cut-off valve is arranged on the first pipeline and used for cutting off the first pipeline;
the instrument positive-phase probe is connected with the lower part of the liquid level tank through a second pipeline and is used for monitoring the internal pressure of the second pipeline;
the instrument positive phase cut-off valve is arranged on the second pipeline and used for cutting off the second pipeline;
and the condensed water collecting and discharging system is connected with the negative phase probe of the instrument and is used for collecting and discharging condensed water accumulated in the negative phase probe of the instrument.
2. The instrument condensate water drain system of claim 1, further comprising an instrument transmitter, wherein the instrument negative phase probe and the instrument positive phase probe are respectively connected to the instrument transmitter through a third pipeline, and the instrument transmitter is configured to apply condensate water input therein to the instrument transmitter to generate a pressure difference, convert the pressure difference into an electrical signal, and transmit the electrical signal to the control system.
3. The meter condensate drain system of claim 1 or 2, wherein the condensate collecting and draining system comprises a condensate collection tank, an air inlet line, a liquid inlet line, an air inlet valve and a liquid inlet valve;
the inlet of the condensed water collecting tank is communicated with air through the air inlet pipeline, and the air inlet valve is arranged on the air inlet pipeline;
one end of the liquid inlet pipeline is connected with the instrument negative phase probe, the other end of the liquid inlet pipeline is connected into the gas inlet pipeline, and the liquid inlet valve is arranged on the liquid inlet pipeline.
4. The meter condensate drain system of claim 3, wherein the condensate collection and drain system further includes a drain line and a drain valve;
the bottom outlet of the condensed water collecting tank is connected through a liquid discharge pipeline and guides out condensed water;
and the liquid discharge valve is arranged on the liquid discharge pipeline and is used for controlling the circulation and the cut-off of the liquid discharge pipeline.
5. The meter condensate drain system of claim 3, wherein the air inlet pipe and the liquid inlet pipe are respectively implemented by phi 12 meter pipes; the air inlet valve and the liquid inlet valve are respectively phi 12 needle valves.
6. The meter condensate drain system of claim 4, wherein the drain line is a phi 12 meter tube; the drain valve adopts a phi 12 needle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223376474.5U CN218671577U (en) | 2022-12-15 | 2022-12-15 | Instrument condensate water discharge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223376474.5U CN218671577U (en) | 2022-12-15 | 2022-12-15 | Instrument condensate water discharge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218671577U true CN218671577U (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223376474.5U Active CN218671577U (en) | 2022-12-15 | 2022-12-15 | Instrument condensate water discharge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218671577U (en) |
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2022
- 2022-12-15 CN CN202223376474.5U patent/CN218671577U/en active Active
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